Colloquium: March 19, 2014
Cooling and Amplification of a Vacuum-Trapped Nanoparticle
|March 19, 2014 Wednesday||15:40||EE01|
Host: Giovanni Volpe
ABSTRACT — We optically trap a single nanoparticle in high vacuum and cool its three spatial degrees of freedom by means of active parametric feedback. The small size and mass of the nanoparticle yield high resonance frequencies and high Q-factors along with low recoil heating, which are essential conditions for ground state cooling and for low decoherence. The vacuum-trapped nanoparticle forms an ideal model system for studying non-equilibrium processes, nonlinear interactions, and ultrasmall forces.
*ETH Zurich, Zurich, Switzerland
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